1 /*
2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/stringTable.hpp"
27 #include "classfile/symbolTable.hpp"
28 #include "code/icBuffer.hpp"
29 #include "gc/shared/collectedHeap.hpp"
30 #include "interpreter/bytecodes.hpp"
31 #include "memory/universe.hpp"
32 #include "prims/methodHandles.hpp"
33 #include "runtime/handles.inline.hpp"
34 #include "runtime/icache.hpp"
35 #include "runtime/init.hpp"
36 #include "runtime/safepoint.hpp"
37 #include "runtime/sharedRuntime.hpp"
38 #include "services/memTracker.hpp"
39 #include "utilities/macros.hpp"
40
41
42 // Initialization done by VM thread in vm_init_globals()
43 void check_ThreadShadow();
44 void eventlog_init();
45 void mutex_init();
46 void chunkpool_init();
47 void perfMemory_init();
48 void SuspendibleThreadSet_init() NOT_ALL_GCS_RETURN;
49
50 // Initialization done by Java thread in init_globals()
51 void management_init();
52 void bytecodes_init();
53 void classLoader_init1();
54 void compilationPolicy_init();
55 void codeCache_init();
56 void VM_Version_init();
57 void os_init_globals(); // depends on VM_Version_init, before universe_init
58 void stubRoutines_init1();
59 jint universe_init(); // depends on codeCache_init and stubRoutines_init
60 #if INCLUDE_ALL_GCS
61 // depends on universe_init, must be before interpreter_init (currently only on SPARC)
62 #ifndef ZERO
63 void g1_barrier_stubs_init() NOT_SPARC({});
64 #else
65 void g1_barrier_stubs_init() {};
66 #endif
67 #endif
68 void interpreter_init(); // before any methods loaded
69 void invocationCounter_init(); // before any methods loaded
70 void marksweep_init();
71 void accessFlags_init();
72 void templateTable_init();
73 void InterfaceSupport_init();
74 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
75 void referenceProcessor_init();
76 void jni_handles_init();
77 void vmStructs_init();
78
79 void vtableStubs_init();
80 void InlineCacheBuffer_init();
81 void compilerOracle_init();
82 bool compileBroker_init();
83 void dependencyContext_init();
84
85 // Initialization after compiler initialization
86 bool universe_post_init(); // must happen after compiler_init
87 void javaClasses_init(); // must happen after vtable initialization
88 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
89
90 // Do not disable thread-local-storage, as it is important for some
91 // JNI/JVM/JVMTI functions and signal handlers to work properly
92 // during VM shutdown
93 void perfMemory_exit();
94 void ostream_exit();
95
96 void vm_init_globals() {
97 check_ThreadShadow();
98 basic_types_init();
99 eventlog_init();
100 mutex_init();
101 chunkpool_init();
102 perfMemory_init();
103 SuspendibleThreadSet_init();
104 }
105
106
107 jint init_globals() {
108 HandleMark hm;
109 management_init();
110 bytecodes_init();
111 classLoader_init1();
112 compilationPolicy_init();
113 codeCache_init();
114 VM_Version_init();
115 os_init_globals();
116 stubRoutines_init1();
117 jint status = universe_init(); // dependent on codeCache_init and
118 // stubRoutines_init1 and metaspace_init.
119 if (status != JNI_OK)
120 return status;
121
122 #if INCLUDE_ALL_GCS
123 g1_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init
124 #endif
125 interpreter_init(); // before any methods loaded
126 invocationCounter_init(); // before any methods loaded
127 marksweep_init();
128 accessFlags_init();
129 templateTable_init();
130 InterfaceSupport_init();
131 SharedRuntime::generate_stubs();
132 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
133 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
134 referenceProcessor_init();
135 jni_handles_init();
136 #if INCLUDE_VM_STRUCTS
137 vmStructs_init();
138 #endif // INCLUDE_VM_STRUCTS
139
140 vtableStubs_init();
141 InlineCacheBuffer_init();
142 compilerOracle_init();
143 dependencyContext_init();
144
145 if (!compileBroker_init()) {
146 return JNI_EINVAL;
147 }
148 VMRegImpl::set_regName();
149
150 if (!universe_post_init()) {
151 return JNI_ERR;
152 }
153 stubRoutines_init2(); // note: StubRoutines need 2-phase init
154 MethodHandles::generate_adapters();
155
156 #if INCLUDE_NMT
157 // Solaris stack is walkable only after stubRoutines are set up.
158 // On Other platforms, the stack is always walkable.
159 NMT_stack_walkable = true;
160 #endif // INCLUDE_NMT
161
162 // All the flags that get adjusted by VM_Version_init and os::init_2
163 // have been set so dump the flags now.
164 if (PrintFlagsFinal || PrintFlagsRanges) {
165 JVMFlag::printFlags(tty, false, PrintFlagsRanges);
166 }
167
168 return JNI_OK;
169 }
170
171
172 void exit_globals() {
173 static bool destructorsCalled = false;
174 if (!destructorsCalled) {
175 destructorsCalled = true;
176 perfMemory_exit();
177 if (PrintSafepointStatistics) {
178 // Print the collected safepoint statistics.
179 SafepointSynchronize::print_stat_on_exit();
180 }
181 if (PrintStringTableStatistics) {
182 SymbolTable::dump(tty);
183 StringTable::dump(tty);
184 }
185 ostream_exit();
186 }
187 }
188
189 static volatile bool _init_completed = false;
190
191 bool is_init_completed() {
192 return _init_completed;
193 }
194
195
196 void set_init_completed() {
197 assert(Universe::is_fully_initialized(), "Should have completed initialization");
198 _init_completed = true;
199 }